Last DAY i have needed upgrade my MDS9124 from 5.0.4(d) to 5.2.8(e).
When i started the upgrade i recaived this message:
disruptive upgrade
O my god!!!! is not possible.
I found the solution… i have resolved with reload the switch (this is siwtch is up from 5 years and the memory is 90% busy).
After reload the upgrade is Non-disruptive
For clone disk and clone vm without vcenter :
cd /vmfs/volumes/Datastore01Raid10
/vmfs/volumes/537dfea4-903a2d25-a8c3-00237da1046c # ls
SRVAPP01 SRVDC02 win2008R2ent
/vmfs/volumes/537dfea4-903a2d25-a8c3-00237da1046c # mkdir template2008
vmfs/volumes/537dfea4-903a2d25-a8c3-00237da1046c # vmkfstools -i SRVDC02/SRVDC02.vmdk template2008/template2008.vmdk
Destination disk format: VMFS zeroedthick
Cloning disk ‘SRVDC02/SRVDC02.vmdk’…
Clone: 100% done.
/vmfs/volumes/537dfea4-903a2d25-a8c3-00237da1046c #
And select custom configuration for add existing disk 
and after select other option for the disk “Use an existing virtual disk”
and select the vmdk create .
I need test this change for increasing convert speed.
I need disable ssl
Change in
converter-worker.xml
<nfc>
<readTimeoutMs>120000</readTimeoutMs>
<useSsl>true </useSsl>
change true whit false
Bye